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BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...

BIOSORPTION OF Pb2+, Cd2+, & Ni2+ FROM WATERS BY ...

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1/q e<br />

1/q e<br />

1/q e<br />

0.12<br />

0.10<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

0.14<br />

0.12<br />

0.10<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

y = 0.0105x + 0.0008<br />

R 2 R = 0.7177<br />

2 R = 0.7177<br />

2 R = 0.7177<br />

2 = 0.7177<br />

0 1 2 3 4 5 6 7<br />

y = 0.1557x + 0.0142<br />

R2 y = 0.1557x + 0.0142<br />

R = 0.9900<br />

2 = 0.9900<br />

1/c e<br />

0.00<br />

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70<br />

0.12<br />

0.10<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

y = 0.0375x + 0.0304<br />

R2 y = 0.0375x + 0.0304<br />

R = 0.9562<br />

2 = 0.9562<br />

1/c e<br />

0.00<br />

0.00 0.50 1.00 1.50 2.00<br />

1/c e<br />

Figure 3.30. Langmuir isotherm plot for (a) Pb 2+ , (b) Cd 2+ ,and (c) Ni 2+ ions biosorbed<br />

by Scenedesmus protuberans<br />

(a)<br />

(b)<br />

(c)<br />

62

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